Cooker.



L. W. STEIN.

COOKEB..

APBLIOATION FILED 00T. s1, 1911.

1,060,864. "Patentedmay 6,1913.

. l SHEETS-SHEET 2. a 15 .17 .14 f5,

gjvweM/fofc ENTRE STATES' PATENT vLLoY-n w'. srnm, or LANCASTER, omo.

cooxnn.

To all wl/10m may concern.'

Be 1t known that I, LLOYD lV. STEIN, a

citizen of the United States, residing at- Lancasterin the county, of Fairfield and State of Ohio, have invented la new 'and 'useful Cooker, of which the following'is a specification.

' The invention relates to improvements in,

heater of simple 'and inexpensive construc-' tion, adapted,to lessen the consumption of fuel, -and capable of maintaining a uniform temperature throughout the cabinet or casing of the cooker without `permitting the water within the cabinet or casing to rise to the temperature of boiling point. 1

With these and other objects in view, theA invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims here-to appended;v it being understoodA that various changes in the form, proportion,

size and minor -details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacricing any of the advantages o f the invention. 5

In the drawings F igure l is a vertical'v sectional view of a food coolier provided with a heater, constructed in accordance with this invention; Fig. 2- is an enlarged vertical sectional view of the water heater. Fig. 3 is a similar View, taken at right angles to Fig. 2.- Fig. 4 is alhorizontal sectional view on the line 4 4 of Fig. 3. Figs.

5 and 6 -are detail sectional views, illustrating the different ways of connecting .the top and vertical walls of the` outer casing or hood. v

Like numerals of reference designate corresponding1 partsin all the figures of the drawings. j

In the accompanying drawings in `which is illustrated the preferred embodimentvof vthe invention, thewater heater comprises in its "construction a horizontal reservoir or receptacle 1, consisting of a top, bottom and vertical walls constructed of sheet metal, or other suitable material and, connected by feed and return pipes 2 and 3, an inner casi Specification of Letters Patent.' Appueaapn aiea october 31, 1911. I serial No. 657,900.

'11;l for the return pipe.

Patented May 6,1913.

ing of a cooking cabinet 5. The inner casing 4 of the cooking cabinet is constructed ofsheet metal, or other suitable material, and is composed of inner and outer shells connected together and formingl an intervening space for the circulation of hot water. `The inner casing is also provided with a plurality of-compartme'ntsf for the reception of cooking utensils 7. .As the'speciic construction of the' cabinet is not claimed in the present application and as any preferred construction of cabinet may be employed, further description thereof is deemed unnecessary.

The, water receptacle 1, which may ybe of any desired configuration, is preferablyrect-angular as shown', and it is arranged within a protecting hood or casing v8, and

is provided at its lower face -with a series of parallel heat conducting metallic plates 9, constructed of sheet metal or other suit-l able materialv and rigidly secured to and depending from the bottom of 'the receptacle l of the water heater. The parallel heat 'retaining and conducting plates 9, which are spaced apart to form intervening heat collecting spaces, are provided atI their upper edges with attaching iianges or portions LO, `and are suitably secured tothe bottomof 4the receptacle l, and the said plates are also provided at intervals `between their upper" and lower edges with alined-openings 1l,-

forming passages for the heat and adapted to permit the same to pass rapidly throughout the entire series of plates, which greatly increase the heat-ingsurface exposed to the action of the flame of a burner 12; 4 The pasv sages formed by .the openings 11 traverse the heat collecting spaces and aord 4coinmunicat-ion between the same. The parallel plates extend entirely across the reservoir or receptacle from one side to the'other except at the return pipe where the plates tern. Y nate short of the adjacent side of the reservoir or receptacle to provide'an open space y The vburner 12. which may be a Bunsen, or other form of burner, is relatively small, as it is unnecesy sary with the heat collecting, conducting and retaining plates to provide a burner having a flame covering substantially the entire area of the bottom of the water heater, and an-economic cooker, which is adapted to lessen the consumption of fuel 'is thus provided.

The outer protecting casing or hood 8 is iic `coinposml of vertical side plates or walls 13 and a horizontal top plate or wall lll all lined with asbestos and adapted to confine the heat of the tlame ot the burner around the heat collecting and conducting plates. he side walls lf3 oit the casing S are preterably supported upon the top of the 1e ceptacle l ot' the water heater by seating upon the top of the reservoir or receptacle l the flanges l5, which embrace the asbestos lining t6, as clearly illustrated in Figs. and

ot the drawings. the casing S from the top ot the reservoir or receptacle and provides an intervening air space l?, which supplements the action ot' the asbestos top lining 18 in preventing the escape of the heat. The vertical Walls 13 of the protecting casing or hood are provided below the receptacle or reservoir l with Ventilating openings l5), located in the plane of the plates l). The top la ot' the casing or hood is provided with depending marginal flanges l5?. which lit against the outer faces of the vertical 'alls and retain the same in engagement with the top ot the reservoir or receptacle. The lower portions ot the side walls 13 are preferably imperforate, and they entend downward a suliicient distance below the lower edges o t the plates 9 to ferm a complete shield .tor the llame of the. burner.

ln Fig. ol' thedraivings, the asbestos lined horizontal top plate or wall of the outer hood or casing is arranged upon the top of the reservoir or receptacle and has its edges upturned to li'orm projecting flanges which are engaged by upper flanges Q4 of asbestos lined side walls or plates Q5 of the hoed 'or easing. r.ln this form of invention there is no air space between the li'orizontal top plate and thc top of the reservoir or receptacle. rl`he upper edges of the side walls or plates may be bent horizontally to form' inwardly extending flanges 26, and the top wall or plate may be provided with downwardly extending vertically disposed inarginal flanges 27, as illustrated in Fig. G ot the drawings. The horizontal flanges Q6 extend inwardlyy over the reservoir or receptaele to hang the sido walls or plates therefrom, and the tlanged top wall forms a cap `for retaining the inwardly extending flanges oit the side walls or plates in engagement with thc reservoir or receptacle. ln this form of the invention there is no air space between the top plate and the reservoir or receptacle, the asbestos lining filling the space between the said flanges.

ln practice the leed and ret urn pipes 2 and 3 will be covered with asbestos, or other suitable material, and the return pipe is preferably equipped with a valve 2l for This spaces the top of.

circulation of Water when the burner is eX-' tinguished. The water Within the cooker is adapted to retain he'at for a considerable length of time after the burner has been eX- tinguished. When theheater is in operation, the hot water flows from the receptacle or reservoir l through the feed pipe 2 into the inner casing of the cabinet, and it returns from the cabinet through the lower pipe to the reservoir or receptacle 1, and no matter how hot the water is heated Within the reservoir or. receptacle, it will remain below a boiling point Within the cabinet, and a uniform temperature will be maintained Within the same.

Having thus fully described my invention, what l claim as new and desire to secure by Letters Patent, is

l. Afwater heater for cookers arranged cxteriorly of the same and including a reservoir, pipes connected with the reservoir and supporting the same at an elevation, plates secured to and depending from the bottom of the reservoir and spaced apart to form intervening heat collecting spaces, said plates being also adapted to have the flame of a burner impinge against them and form heat conductors, and a hood supported at an elevation by the reservoir and having side walls .extending below the plane of the plates, said hood being open at the bottom to permit a burner to be placed beneath the reservoir. I

2. A water heater of the class described including a reservoir supported at an elevation and provided with heat collecting and conducting plates connected to and depending from the bottom of the reservoir and spaced apart to :torni intervening heat collecting spaces, and a protecting hood com prising vertical Walls provided at their npper edges with horizontal flanges proJect-mg from their inner faces and engaging the top of the reservoir to support the vertical Walls,

and a top spaced from the top of the reser Voir and having depending marginal flanges embracing the upper edges of the vert-ical walls and retaining the latter in engagement with the reservoir, said hood being open at the bottom to permit a burner to be placed beneath the reservoir and forming a'shield for the burner and confining the heat. 0

In testimony, that I claim the foregoing as my ovn, l have hereto atiixed my signature in the presence ol two Witnesses.

' LLOYD W. STEIN. Witnesses L. G. SILBAUGH, CHAs. E. DELoAoH.

Copies et this patent may be obtained for v cents each, by addressing the Commissioner of Fatents, Washington, C. 

